Drinking tap water does not usually cause stones. General tap water is in line with national standards of drinking water, water contains soluble magnesium and calcium compounds. Although tap water contains magnesium, calcium and other minerals, but the content is limited, daily consumption of tap water generally does not cause stones. However, it is not recommended to drink tap water directly. Although tap water has been sterilized and purified, tap water may carry microorganisms attached to the walls of water pipes during transportation. Drinking tap water directly in large quantities over a long period of time is likely to cause diarrhea and other problems. It is recommended that tap water be boiled before drinking, which can kill microorganisms in the water. In case of urinary stones, it is recommended that the patient seek medical attention, follow the doctor’s instructions for further examination, and carry out targeted treatment or therapy with the help of the doctor.